Norden Seasonal Pollution
Norden usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in July. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Lower Saxony, Germany.
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Average EPA AQI
22
Rank 255 of 297 cities by average AQI
PM2.5
8.7
ug/m3 annualized city average
Seasonality
December
Cleanest: July
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Norden
13
11
16
9
10
10
8
34
45
39
42
46
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Norden, the current global analytics build covers 312 daily rows from 2024-01-03 to 2024-12-31. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.